NETHERLANDS INDIES. (SINGAPORE-HONG KONG). 1906. Netherlands Indies postal stationery envelope 25c violet cancelled by framed Maos hand-stamp in violet endorsed '22nd April 06' on reverse, addressed to the 'Basel Mission, Hoyuen, China', endorsed 'via Canton and Weichow' with Keryusond' straight-line village hand-stamp with Madion '23rd April' and Weltevreden '25/4' on reverse, then by maritime mail from Singapore to Hong Kong dated 'Ap 28' sent on the steamer 'Dongola' arriving Hong Kong '3/5' and Chinese Imperial Post Canton '4th May'. Very nice item of incoming mail.